Herman Cain, I’m sorry.Loyal readers during the 2012 presidential contest may recall that I used the frontrunner for the Republican presidential nomination as a political pinata. The former Godfather’s Pizza executive could do nothing right. Cain was ill-prepared. He joked about putting an electric fence on the border with Mexico to thwart illegal immigration. He slammed critics with belittling jokes. And he was so unprepared for the intense spotlight on the main stage of American...